I called the 800 # this morning and it said that my vehicle was in production. It said it would be completed on the 23rd of March. Is there anywhere i can get a break down of how long these steps take to complete? About how long should the entire production period take?

My production took about a week and was completed exactly the day they said (in your case the 23rd). You will get updates alng the way on the 800. Such as your vehicle is in the body shop, your vehicle is in the paint shop. I'd call each day to get the updates because it's interesting to know. I think you can be confident your car will be done at or near the 23rd.